Strong Santa Ana winds are hitting fire-ravaged Los Angeles on Friday morning, but the winds will relax later in the day and the red flag warning will end Friday night.

Dire warnings have been issued for the Los Angeles area, with a dangerous threat for the strongest wind event in more than a decade. Outages and extreme fire behaviours are major risks

Red Flag Warnings remain in effect through Friday evening for much of Los Angeles and Ventura Counties, the National Weather Service said.

Another round of Santa Ana winds has moved into Southern California and will spread south through San Diego County late Thursday. The additional dry air also is expected to worsen the region’s already very low humidity levels,

Mountain road closures are planned, and precautionary power shutoffs are expected due to potentially destructive winds and ultra-low humidity.

With fire crews slowly making progress against a series of devastating Los Angeles wildfires that have claimed at least 10 lives, Santa Ana winds will buffet the region for one more day Friday.

After restoring electricity on Thursday afternoon to all customers in rural areas impacted by public safety shutoffs, strong Santa Ana winds overnight forced San Diego Gas & Electric to turn off the power again.

Powerful Santa Ana winds are set to pick up again, making it challenging for firefighters to gain control of the severe wildfires in southern California. Meanwhile, a winter storm is bringing cold temperatures,

Santa Ana winds are expected to pick back up before the week is over. However, this round is not expected to be as powerful as Tuesday's.